Me too with this issue after xorg update. Here on a ATI Radeon Xpress 1100. Reverting to older packages resolved the problem. I try again and download the new packages and the same problem. Using GDM no problem to login. Now I use the following command proposed at the forum, http://ubuntuforums.org/showthread.php?t=1343261&page=5, and KDM is working without problem with all the new packages:
cd /etc/init
sudo mv failsafe-x.conf failsafe-x.conf-disable
cd /etc/init.d
sudo mv failsafe-x failsafe-x-disable
Me too with this issue after xorg update. Here on a ATI Radeon Xpress 1100. Reverting to older packages resolved the problem. I try again and download the new packages and the same problem. Using GDM no problem to login. Now I use the following command proposed at the forum, http:// ubuntuforums. org/showthread. php?t=1343261& page=5, and KDM is working without problem with all the new packages: x.conf- disable
cd /etc/init
sudo mv failsafe-x.conf failsafe-
cd /etc/init.d
sudo mv failsafe-x failsafe-x-disable